Unison Research S9 Integrated Amplifiers

I really don t believe what is written above. I am using this amplifier for 2 years now and it performs breathtaking and melliflous sound. This amplifier is very fast, reproduces high dynamic and, what is the most important for me, makes details...

Stunning sounding single ended class A amp that entertains like few others and delivers the sonic goods with aplomb. An addictive blend of musicality and muscle with a solid, rounded tuneful bass, an expansive and expressive midband coupled with the...

This amp is horrible. The shrill of the SV572 sounds thin ,sterile, annoying and makes you want to leave the room and make coffee. Sounds loud and powerful but you just keep turning it down. Change i/p tubes to amperex then mullard and still not enough...